David Guttenfelder was born in Iowa and graduated from the University of Iowa with a Bachelor of Arts in cultural anthropology. He has worked for the AP since 1994 based in Kenya, the Ivory Coast, India and Japan. He is currently AP’s chief Asia photographer and his feature work has been used prominently in editorial publications throughout the world including Time and National Geographic. Photo: U.S. soldiers from the 2nd Battalion, 12th Infantry Regiment, 4th Brigade Combat Team, fire mortars at known enemy firing positions from a base in the Pech River Valley in Afghanistan's Kunar province, Saturday, October 24, 2009. (Photo by David Guttenfelder/AP Photo)

Youth category winner: Symphony No 5 by Giacomo Redaelli (Italy). (Photo by Giacomo Redaelli/2019 Nature Photographer of the Year)

“Jim Fiscus is an American photographer specializing in editorial and advertising photography, including several highly regarded campaigns for the Showtime series Dexter, starring Michael C. Hall. Fiscus, who is based in Athens, Georgia, has won many awards for his work, including at the 2005 International Photo Awards for his portraits of hip-hop and R&B artists Jay-Z, Usher, and Outkast. Also in 2005, he was named International Photographer of the Year at the Lucies, and he is the winner of the 2008 International Aperture Award for his photograph of English chef and best-selling cookbook author Jamie Oliver, commissioned by Channel 4 in the U.K. In 2009, his photographic novella, “The Unfortunate Moment of Misunderstanding”, was displayed at Industrial Color’s M Project Gallery in New York in June 2009”. – Wikipedia

“When We're Gone... Memories Of Us Are All That Remain”, 2011. (Photo by: Trini61; Source: Flickr)

“Sperm whale opening it's huge mouth, Ogasawara Islands, Japan. Sperm whales are the biggest carnivorous animals on the planet. Each teeth in the mouth of adult specimen weights more than 1 kilogram. Interestingly enough that modern marine biologists believe that these teeth despite being fearsome play little role in capturing and eating giant squid – with their main function being mainly ritual aggression between males!”. (Photo by Alexander Safonov)